The Mangrove Jack’s Dual Temperature Controller is a heating and cooling regulator to ferment your beer at controlled temperatures. It can be used with your fridge and heat pad or heat belt. The fridge and the heating option can be plugged into the controller at the same time allowing them to work in partnership with one another. No additional wiring or probes required. Just plug it in!Specifications:• Temperature Control Range: -50-99ºC (-58-210ºF)• Power Supply: 220V AC +/- 10%, 50/60HZ• Sensor: NTC Sensor• Relay Contact Capacity: Cooling (10A/250V AC), Heat (10A/250V AC)• Accuracy: +/- 1ºC (-50-70ºC or -58-158ºF)